Flight number record

UA 1164

United Airlines · San Francisco to Los Angeles

Route: SFO → LAX
Departs: 10:35
Flights: 267
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1164, check with United Airlines.

UA 1164 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land about 45 minutes behind schedule. That rests on 267 flights, with a median arrival right on schedule.

On time

74.1%

Arrivals under 15 minutes late, of 266 completed flights

Avg delay

44 min

Across delayed arrivals only, not all flights

Cancelled

0.37%

National rate is 1.81%

1 hour+ late

4.5%

National rate is 8.1%

These figures cover 267 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When UA 1164 flies

UA 1164 flies SFO to LAX without a single fixed slot. Its most common scheduled departure was 10:35, used on 64 of 267 flights, with 10:50 (56 flights) and 10:52 (50 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 10:3564 flights24.0%
Departs 10:5056 flights21.0%
Departs 10:5250 flights18.7%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 10:35 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 1164 runs 10 points worse at 74.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

UA 1164 next to SFO to LAX

Every carrier on SFO to LAX combined arrived on time 73.9% of the time across 11,015 flights, so UA 1164 is about level with it. United flew 3,263 flights on the same city pair under all its flight numbers, including this one, and those ran 78.4% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 5 points.

UA 1164 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1164thin sample	267	74.1%	44 min	0.37%	C+
All United Airlines on SFO–LAX	3,263	78.4%	49 min	0.28%	B+
All carriers on SFO–LAX	11,015	73.9%	60 min	0.84%	C+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1164 quarter by quarter

UA 1164 did not run the same all year. Its best quarter was Jan–Mar 2026 at 78.9% on time and its weakest Oct–Dec 2025 at 65.5%, a swing of 13 points on roughly 67 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202543 flights76.2%
Oct–Dec 202587 flights65.5%
Jan–Mar 202690 flights78.9%
Apr–Jun 202647 flights78.7%

Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1164 did best on Monday at 79.5% on time and worst on Friday at 66.7%. Each day rests on about 38 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1164 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,039 reported delay minutes.

Late-arriving aircraft
40%
National Airspace System
32%
Carrier
28%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,039 reported delay minutes here, that single category outweighs weather by 40 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,039 delay minutes reported on UA 1164.

Cancellations are rare at 0.37%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.5% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The same number turns up on four other city pairs in the data, including PDX to SFO (83), LAX to EWR (19) and LAX to IAD (18), but none flew often enough under UA 1164 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SFO to LAX only.

One caution: this is a thin sample. 267 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking UA 1164

For a booking, read UA 1164 as 74.1% on time with 0.37% cancelled over 267 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures